<!-- eslint-disable vue/no-v-html -->
<template>
  <EleModal
    :width="980"
    title="代码预览"
    position="center"
    v-model="visible"
    :bodyStyle="{
      height: 'calc(100vh - 66px)',
      maxHeight: 'calc(100dvh - 66px)',
      padding: '6px 8px',
    }"
    @open="handleOpen"
    @closed="handleClosed"
  >
    <div class="form-builder-code-view">
      <div class="form-builder-code-header">
        <div class="form-builder-code-tabs">
          <div
            v-for="item in tabs"
            :key="item.value"
            :class="[
              'form-builder-code-tab',
              { 'is-active': active === item.value },
            ]"
            @click="handleTabClick(item.value)"
          >
            {{ item.label }}
          </div>
        </div>
        <div class="form-builder-code-tools">
          <EleCopyable
            :text="data.code"
            :iconProps="{ style: { color: '#d6dde3' } }"
            :tooltip="{
              placement: 'bottom',
              bg: '#383838',
              arrowBg: '#383838',
              hideAfter: 0,
            }"
          />
          <EleTooltip
            content="下载"
            placement="bottom"
            bg="#383838"
            arrowBg="#383838"
            :hideAfter="0"
            :offset="6"
          >
            <ElIcon class="form-builder-code-icon-tool" @click="handleDownload">
              <DownloadOutlined />
            </ElIcon>
          </EleTooltip>
        </div>
      </div>
      <div class="form-builder-code-body">
        <div class="form-builder-code-line-numbers">
          <div v-for="n in data.lines" :key="n">{{ n }}</div>
        </div>
        <pre v-html="data.html"></pre>
      </div>
    </div>
  </EleModal>
</template>

<script setup>
import { ref } from "vue";
import hljs from "highlight.js";
import "highlight.js/styles/github-dark.css";
import xml from "highlight.js/lib/languages/xml";
import {
  generateProFormCode,
  generateElFormCode,
} from "ele-admin-plus/es/ele-pro-form-builder/components/code-generator";
import { DownloadOutlined } from "@/components/icons";
import { download } from "@/utils/common";
import { useFormData } from "@/utils/use-form-data";

hljs.registerLanguage("vue", xml);

const props = defineProps({
  /** 配置数据 */
  config: Object,
  /** 组件库数据 */
  componentData: Array,
});

/** 弹窗是否打开 */
const visible = defineModel({ type: Boolean });

/** 数据 */
const [data, resetData, assignData] = useFormData({
  code: "",
  html: "",
  lines: [1],
});

/** 代码生成的数据 */
const generateData = [{}, {}];

/** 选项卡 */
const tabs = ref([
  { label: "ProForm", value: 0 },
  { label: "ElForm", value: 1 },
]);

/** 选项卡选中 */
const active = ref(0);

/** 选项卡点击事件 */
const handleTabClick = (value, force) => {
  if (!force && active.value === value) {
    return;
  }
  active.value = value;
  assignData(generateData[active.value]);
};

/** 下载 */
const handleDownload = () => {
  download(data.code, "index.vue", "text/plain;charset=utf-8");
};

/** 弹窗关闭事件 */
const handleClosed = () => {
  generateData[0] = {};
  generateData[1] = {};
  resetData();
};

/** 弹窗打开事件 */
const handleOpen = () => {
  const proCode = generateProFormCode(props.config);
  const proHtml = hljs.highlight(proCode, { language: "vue" }).value;
  generateData[0] = {
    code: proCode,
    html: proHtml,
    lines: proHtml.split("\n").map((_, i) => i + 1),
  };
  const elCode = generateElFormCode(props.config, props.componentData);
  const elHtml = hljs.highlight(elCode, { language: "vue" }).value;
  generateData[1] = {
    code: elCode,
    html: elHtml,
    lines: elHtml.split("\n").map((_, i) => i + 1),
  };
  handleTabClick(active.value, true);
};
</script>

<style lang="scss" scoped>
.form-builder-code-view {
  height: 100%;
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  border: 1px solid #000;
  background: #1e1e1e;
  border-radius: 8px;
  overflow: hidden;
}

.form-builder-code-body {
  flex: 1;
  color: #e6edf3;
  box-sizing: border-box;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  --ele-scrollbar-color: #5e5e5e;
  --ele-scrollbar-hover-color: #707070;

  & > pre {
    flex: 1;
    margin: 0;
    padding: 12px;
    box-sizing: border-box;
    font-family: monospace;
  }
}

.form-builder-code-line-numbers {
  flex-shrink: 0;
  color: #8b949e;
  font-family: monospace;
  padding: 12px 0;
  min-width: 38px;
  background: #1e1e1e;
  border-right: 1px solid #000;
  box-sizing: border-box;
  text-align: center;
  user-select: none;
  position: sticky;
  left: 0;

  & > div {
    max-height: 100%;
  }
}

.form-builder-code-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  border-bottom: 1px solid #000;
  box-sizing: border-box;
}

.form-builder-code-tools {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  box-sizing: border-box;
  padding: 6px 16px 6px 0;

  & > .ele-copyable {
    border-radius: 4px;
    background: #444444;
    transition: background-color 0.2s;

    :deep(.ele-copyable-icon) {
      padding: 4px;
      margin: 0;
    }

    &:hover {
      background: #707070;
    }
  }
}

.form-builder-code-icon-tool {
  width: auto;
  height: auto;
  font-size: 15px;
  color: #d6dde3;
  background: #444444;
  padding: 4px;
  margin-left: 8px;
  border-radius: 4px;
  box-sizing: border-box;
  transition: background-color 0.2s;
  cursor: pointer;

  &:hover {
    background: #707070;
  }
}

.form-builder-code-tabs {
  flex: 1;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.form-builder-code-tab {
  height: 35px;
  line-height: 35px;
  color: #e6edf3;
  font-weight: bold;
  font-family: monospace;
  padding: 0 2px;
  margin: 0 0 0 16px;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  box-sizing: border-box;
  user-select: none;
  cursor: pointer;

  &:hover {
    color: var(--el-color-primary);
  }

  &.is-active {
    color: var(--el-color-primary);
    border-bottom-color: var(--el-color-primary);
  }
}
</style>
